| CMS Note | |
| Report number | CMS-CR-2024-320 |
| Title | CMS CSC longevity studies |
| Author(s) | Perelygin, Victor (Dubna, JINR) |
| Publication | 2024 |
| Collaboration | CMS Collaboration |
| Imprint | 20 Nov 2024 |
| Number of pages | 12 |
| Presented at | 7th International Conference on Particle Physics and Astrophysics, Moscow, Russia, 22 - 25 Oct 2024 |
| Subject category | Detectors and Experimental Techniques |
| Accelerator/Facility, Experiment | CERN LHC ; CMS |
| Keywords | Muons |
| Abstract | Cathode Strip Chambers (CSCs) are used in the muon system of the CMS experiment at LHC. There are four muon stations on both endcaps consisting of 540 CSCs operating with 40\%Ar + 50\%CO2 + 10\%CF4 gas mixture. The chamber longevity study is particularly important in anticipation of the future LHC upgrade into High Luminosity LHC (HL-LHC) and the scheduled upgrade of the CMS detector. The CSC longevity is studied with two CMS CSCs ME1/1 and ME2/1 at the Gamma Irradiation Facility (GIF++, CERN). The tests didn't show any degradation in the chamber's performance. The study of the reduction of, or possible replacement of, the CF4 in the working gas mixture is also ongoing, including longevity studies with small CSC prototypes. |
Record created 2024-12-10, last modified 2024-12-10